Ultraviolet Absorption Spectroscopy

Abstract

THE past year has seen a healthy level of activity, as evidenced by publications on all aspects of the analytical applications of ultraviolet absorption spectroscopy. In particular, the number and variety of the publications dealing with problems of biological or pharmaceutical interest are impressive. APPARATUS AND GENERAL TOPICSThe development of the potentially important field of spectrophotometry in the vacuum ultraviolet (50 to 200 µ) has been advanced by a series of three related papers. Tousey and coworkers (59) describe a vacuum monochromator, using a 1-meter grating at normal incidence, which is designed for automatic scanning and photoelectric recording. The application of a bismuth-silver thermocouple mounted in the evacuated monochromator to the measurement of the radiant pow'er from a hydrogen arc is reported by Packer and Lock (46), who carried out an absolute calibration of this detector. An alternative detector for this spectral range, studied by Johnson, Watanabe, and Tousey (SO), is a

Ultraviolet and Light Absorption Spectrometry

“…This review reports the developments in ultraviolet and light absorption spectrometry from January 1994 through December 1995, primarily as documented in the Ultraviolet & Visible Spectroscopy section of CA Selects, and extends the series of reviews on these topics sponsored by Analytical Chemistry starting with Light Absorption Spectrometry in 1945 (1-3), followed by Ultraviolet Absorption Spectrometry in 1949 (4)(5)(6)(7)(8)(9) and combined Ultraviolet and Light Absorption Spectrometry in 1978 (10,11). As in the previous reviews, the subject matter is divided into sections on chemistry, physics, and applications.…”

Ultraviolet and Absorption Light Spectrometry

“…However, since the last reporting period for this review covered the time period from January 1994 through December 1995, this current review will be reporting the developments in ultraviolet and visible absorption spectrometry from January 1996 through October 1997. The citation sources for this review are primarily those as documented in the Ultraviolet & Visible Spectroscopy section of CA Selects and extend the series of reviews on these topics sponsored by Analytical Chemistry starting with Light Absorption Spectrometry in 1945 (1-3), followed by Ultraviolet Absorption Spectrometry in 1949 (4)(5)(6)(7)(8)(9) and combined Ultraviolet and Light Absorption Spectrometry in 1978 (10)(11)(12). As in the previous reviews, the subject matter is divided into sections on chemistry, physics, and applications.…”

Surface-enhanced Raman spectroscopy detection of organic molecules and in situ monitoring of organic reactions by ion-induced silver nanoparticle clusters

“…Hydrocarbons and their derivatives are often referred to as organic compounds, and are known to play an important role in pharmaceutical 1 and medical research, 2 as well as the development of solar cells and polymer materials. 3 Researchers have developed various label-free methods of organic molecule detection, such as nuclear magnetic resonance spectroscopy (NMR), 4,5 UV-visible absorption spectroscopy (UV-vis), 6,7 mass spectrometry (MS), 8 molecular imprinting of polymers (MIPs), 9 electrochemical modification of electrodes, 10,11 and infrared spectroscopy (IR). 12 However, most of these methods are complex and have several limitations.…”